CN104238164A - 3D (three-dimensional) display device - Google Patents
3D (three-dimensional) display device Download PDFInfo
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- CN104238164A CN104238164A CN201410444490.4A CN201410444490A CN104238164A CN 104238164 A CN104238164 A CN 104238164A CN 201410444490 A CN201410444490 A CN 201410444490A CN 104238164 A CN104238164 A CN 104238164A
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 230
- 125000006850 spacer group Chemical group 0.000 claims abstract description 103
- 230000000694 effects Effects 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 23
- 230000005684 electric field Effects 0.000 claims description 89
- 239000000758 substrate Substances 0.000 claims description 73
- 238000007598 dipping method Methods 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention belongs to the technical field of 3D (three-dimensional) display, and provides a 3D display device. The 3D display device comprises a display panel, a liquid crystal lens, a driving circuit and a voltage module, wherein the liquid crystal lens is positioned at the display side of the display panel, the voltage module provides initial voltage for the driving circuit, when the 3D display device is used for 3D display, after the initial voltage is processed by the driving circuit, multiple groups of driving voltages required by the work of the liquid crystal lens can be output, when the 3D display device is used for 2D (two-dimensional) display, the driving circuit processes each group of driving voltages, and then outputs deflection voltage, the deflection voltage is greater than the threshold voltage of liquid crystal molecules, but is smaller than or equal to the initial voltage, under the effect of the deflection voltage, the liquid molecules in a liquid crystal layer generate deflection, and the refractive index difference between the liquid crystal molecules and spacers is reduced for eliminating the influence of the spacers on the light outlet of the display panel. Compared with the prior art, the 3D display device has the advantage that the watching effect and the watching comfort degree of the 3D display device in the 2D display state can be improved.
Description
Technical field
The invention belongs to stereo display technique field, particularly relate to 3 d display device.
Background technology
Along with the development of stereo display technique, people require that 3 d display device not only can show stereo-picture, also can show 2D image according to the demand of beholder, as display word or picture.As shown in Figure 1, existing 3 d display device, comprises display panel 2 ＇ and liquid crystal lens 1 ＇ being located at display panel 2 ＇ light emission side.Display panel 2 ＇ provides the left view and right view with image difference, by point light action of liquid crystal lens 1 ＇, make left view enter the left eye of beholder, right view enters the right eye of beholder, and the brain of beholder forms stereo-picture based on the image difference of institute's perception.
As shown in Figures 1 and 2, liquid crystal lens 1 ＇ comprises first substrate 11 ＇ and second substrate 12 ＇ that are oppositely arranged, liquid crystal layer and spacer 14 ＇ for supporting thickness of liquid crystal layer is provided with between first substrate 11 ＇ and second substrate 12 ＇, first substrate 11 ＇ is provided with multiple first electrode 15 ＇ be parallel to each other, all keep at a certain distance away between adjacent two the first electrode 15 ＇, second substrate 12 ＇ is provided with multiple second electrode 16 ＇ be parallel to each other, all keep at a certain distance away between adjacent two the second electrode 16 ＇, to the first electrode 15 ＇, second electrode 16 ＇ provides the first voltage and the second voltage respectively, then, pressure reduction between first voltage and the second voltage produces and drives electric field between first substrate 11 ＇ and second substrate 12 ＇, drive the liquid crystal molecule 13 ＇ generation deflection in various degree in electric field driven liquid crystal layer, thus in first substrate 11 ＇ and second substrate 12 ＇, form liquid crystal lens unit 17 ＇ of array arrangement, the polarized light of display panel 2 ＇ outgoing is by point light action of liquid crystal lens unit 17 ＇, left view is by left eye identification, right view is by right eye identification, thus carry out 3-D display.
As shown in Figure 3, when 3 d display device is used for 2D display, liquid crystal lens 1 ＇ is carried out power down process, now, produce without electric field between first substrate 11 ＇ and second substrate 12 ＇, the polarized light that display panel 2 ＇ sends is through spacer 14 ＇, because the refringence between spacer 14 ＇ and liquid crystal molecule 13 ＇ is larger, light reflects at spacer 14 ＇ place, cause human eye when watching 3 d display device, there is bright spot at spacer 14 ＇ place, affect viewing effect and the viewing comfort level of beholder.
Prior art also discloses a kind of 3 d display device, comprise display panel and liquid crystal lens grating, display panel comprises multiple pixel cell and is arranged on the black matrix between multiple pixel cell, liquid crystal lens grating comprises spacer, the position of spacer corresponds to the position of black matrix in display panel, black matrix is set in display panel, not only affect the display effect of display panel, and black matrix fail complete coverage gap son, when causing human eye to be watched, still there is bright spot phenomenon at spacer place.
Summary of the invention
The object of embodiment of the present invention is to provide a kind of 3 d display device, is intended to solve above-mentioned one or more problem that prior art existence is limited to or defect causes.
Embodiment of the present invention realizes like this, 3 d display device, comprise display panel, liquid crystal lens, driving circuit and voltage module, described liquid crystal lens is positioned at the display side of described display panel, described liquid crystal lens comprises the first substrate and second substrate that are oppositely arranged, liquid crystal layer and spacer is provided with between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, described second substrate is provided with multiple second electrode, each described first electrode, described second electrode is electrically connected with the output terminal of described driving circuit respectively, described voltage module provides initial voltage to described driving circuit, when described 3 d display device is used for 3D display, described initial voltage exports the many groups driving voltage needed for described liquid crystal lens work after described driving circuit process, when described 3 d display device is used for 2D display, described driving circuit exports deflection voltage to after driving voltage process described in each group, described deflection voltage is greater than the threshold voltage of described liquid crystal molecule, and be less than or equal to described initial voltage, under the effect of described deflection voltage, liquid crystal molecule in described liquid crystal layer deflects, reduce the refringence between described liquid crystal molecule and described spacer, to eliminate the impact of described spacer on described display panel bright dipping.
Particularly, described driving voltage road comprises signal generating module and voltage switching module, when described 3 d display device is used for 2D display, described signal generating module produces control signal, and described control signal controls described voltage switching module and driving voltage described in each group is switched to described deflection voltage.
Further, described voltage switching module comprises switch unit, and described switch unit receives described control signal, and each described driving voltage is switched to described deflection voltage.
Further, described voltage switching module also comprises pressure regulation unit, the output terminal of described pressure regulation unit and described voltage module is connected in series, and by regulating described pressure regulation unit to obtain driving voltage described in each group, described pressure regulation unit and described switch unit are connected in parallel.
Further, described voltage switching module also comprises voltage regulation unit, for carrying out voltage stabilizing process to described deflection voltage, described voltage regulation unit is connected with described pressure regulation units in series, and output terminal and each described first electrode, described second electrode of described voltage regulation unit are electrically connected.
Further, described 3 d display device also comprises detecting module, for detecting beholder whether within the scope of default viewing, when described beholder is not within the scope of described default viewing, described detecting module sends detection signal, described driving circuit receives described detection signal, controls described 3 d display device and shows for 2D.
Particularly, when described 3 d display device is used for 2D display, described voltage module provides the first voltage by described driving circuit to each described first electrode, and provide the second voltage to each described second electrode, the difference between described first voltage and described second voltage is described deflection voltage.
Further, described liquid crystal lens also comprises the 3rd electrode, described 3rd electrode is arranged between each described first electrode and described first substrate, when described 3 d display device is used for 2D display, described voltage module provides tertiary voltage by described driving circuit to each described first electrode, there is provided the 4th voltage to each described second electrode, provide the 5th voltage to described 3rd electrode, the difference between described 4th voltage and described 5th voltage is described deflection voltage.
Particularly, described deflection voltage produces the equal uniform electric field of electric field intensity between described first substrate with described second substrate, under the effect of described uniform electric field, the deflection of described liquid crystal molecule generation same degree, the described liquid crystal molecule after deflection and the refringence between described spacer are in preset range.
Further, the alignment direction of described liquid crystal layer is horizontal direction, angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is acute angle, described deflection voltage produces transverse electric field between described first substrate and described second substrate, and described transverse electric field drives the liquid crystal molecule generation deflection in various degree in described liquid crystal layer.
Further, the described transverse electric field in the crossover location place of described first electrode and described second electrode is strong electric field region, and the described liquid crystal deflecting element angle being positioned at described strong electric field region is n
1, the deflection angle away from the described liquid crystal molecule of described strong electric field region is n
2, and n
1>n
2.
Further, the described liquid crystal molecule being positioned at described strong electric field region deflects along first direction, and described first direction is perpendicular to the bearing of trend of described second electrode.
Preferably, described first voltage is ground voltage, and described second voltage is alternating voltage, and described in described in adjacent two, the second electrode pair is answered two, second voltage carves equal and opposite in direction at the same time, and polarity is contrary.
Preferably, the angle between the bearing of trend of described first electrode and the bearing of trend of described second electrode is α
1, described α
1for acute angle, the angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is β
1, and 45 °≤β
1<90 °.
Or preferably, the angle between the bearing of trend of described first electrode and the bearing of trend of described second electrode is α
2, described α
2for obtuse angle, the angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is β
2, and 0 ° of < β
2<45 °.
The 3 d display device that embodiment of the present invention provides, when 3 d display device is used for 2D display, signal generating module produces control signal, switch unit reception control signal, each group of driving voltage is switched to deflection voltage, and under the effect of deflection voltage, liquid crystal molecule deflects, the refractive index of liquid crystal molecule after deflection to light also there occurs change, reduces the refringence between liquid crystal molecule and spacer.Weaken spacer to the refraction of display panel bright dipping, eliminating human eye when watching 3 d display device, there is bright spot phenomenon at spacer place.Compared with prior art, in the present embodiment, the position of spacer does not need the position corresponding to black matrix in display panel, reduces the manufacture difficulty of liquid crystal lens.
Accompanying drawing explanation
Fig. 1 is the structural representation of the 2D/3D switchable stereo display device that prior art provides;
Fig. 2 is the structural representation of the liquid crystal lens in Fig. 1;
Fig. 3 is another structural representation of the liquid crystal lens in Fig. 1;
Fig. 4 is 3 d display device that embodiment of the present invention one provides structural representation when showing for 2D;
Fig. 5 is 3 d display device that Fig. 4 provides structural representation when showing for 3D;
Fig. 6 is the another structural representation of the 3 d display device that Fig. 4 provides;
Fig. 7 is the structural representation of the driving circuit that Fig. 6 provides;
Fig. 8 is the structural representation of the voltage switching module that Fig. 7 provides;
Fig. 9 is the 3 d display device structural representation that embodiment of the present invention two provides;
Figure 10 is the 3 d display device structural representation that embodiment of the present invention three provides;
Figure 11 is the structural representation of the liquid crystal lens that Figure 10 provides; ;
Figure 12 is the distribution schematic diagram of the liquid crystal layer that Figure 10 provides;
Figure 13 is the second electrode that Figure 10 provides schematic diagram crossing with liquid crystal layer alignment direction;
Figure 14 is the second electrode that embodiment of the present invention four provides schematic diagram crossing with liquid crystal layer alignment direction.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and the embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one
As shown in Figures 4 to 6, the 3 d display device (not shown) that embodiment of the present invention provides, comprises liquid crystal lens 1, display panel 2, driving circuit 3 and voltage module 4, and liquid crystal lens 1 is arranged at the display side of display panel 2.Liquid crystal lens 1 comprises the first substrate 11 and second substrate 12 that are oppositely arranged, and second substrate 12 is arranged at the top of first substrate 11.Be provided with liquid crystal layer (not shown) and spacer 14 between first substrate 11 and second substrate 12, spacer 14 is for supporting the thickness of liquid crystal layer.As shown in Fig. 4 and Fig. 6, first substrate 11 is provided with multiple first electrode 15, and second substrate 12 is provided with multiple second electrode 16, and each first electrode 15, second electrode 16 is electrically connected with driving circuit 3 output terminal respectively.First substrate 11 is provided with multiple first electrode 15, and the bearing of trend of each first electrode 15 is consistent, and is namely parallel to each other between each first electrode 15, all keeps at a certain distance away between adjacent two the first electrodes 15.Second substrate 12 is provided with multiple second electrode 16, and the bearing of trend of each second electrode 16 is consistent, and is namely parallel to each other between each second electrode 16, all keeps at a certain distance away between adjacent two the second electrodes 16.
As shown in Figure 5, when 3 d display device is used for 3D display, voltage module 4 provides initial voltage to driving circuit 3, driving circuit 3 pairs of initial voltages process many groups driving voltage that rear output liquid crystal lens 1 works required, under the effect of many group driving voltages, liquid crystal molecule 13 in liquid crystal layer forms the liquid crystal lens unit L1 of gradually changed refractive index, and liquid crystal lens unit L1 carries out light splitting to the light that display panel 2 sends, and forms stereo-picture.For forming the liquid crystal lens unit L1 of refractive index distribution gradient, require that many group driving voltages are relative to liquid crystal lens unit L1 Central Symmetry, the magnitude of voltage of each driving voltage is successively decreased to center gradually by the two ends of liquid crystal lens unit L1.
In the present embodiment, initial voltage can be the maximum drive voltage of liquid crystal lens 1, also can be greater than the maximum drive voltage of liquid crystal lens 1.When 3 d display device is used for 3D display, initial voltage, through the process of overdrive circuit 3, exports liquid crystal lens 1 and to work required driving voltage, and driving voltage drives liquid crystal molecule 13 to form the liquid crystal lens unit L1 with gradient refractive index rate variance.The bright dipping of display panel 2, through point light action of liquid crystal lens 1, forms the horizontal parallax figure with image difference, enters in beholder's eye, form stereo-picture.
As shown in Figure 4, when 3 d display device is used for 2D display, driving circuit 3 exports deflection voltage to after each group of driving voltage process, deflection voltage is greater than the threshold voltage of liquid crystal molecule 13, and is less than or equal to initial voltage, under the effect of deflection voltage, liquid crystal molecule 13 deflects, the refractive index of liquid crystal molecule 13 pairs of display panels 2 bright dipping after deflection changes, and reduces the refringence between liquid crystal molecule 13 and spacer 14, to eliminate the impact of spacer 14 on display panel 2 bright dipping.In the present embodiment, liquid crystal molecule 13 after deflection and the refringence between spacer 14b less, make refringence between liquid crystal molecule 13b and spacer 14b in preset range, preset range in present embodiment refers to that the refringence between liquid crystal molecule 13b and spacer 14b is less than 0.1, certainly this numerical value is not limited to, refractive index difference can be limited as required, improve the viewing effect of 3 d display device under 2D display state and viewing comfort level by above-mentioned setting, improve display resolution.The present invention can solve 3 d display device as shown in Figure 3, when beholder is when watching the 2D picture that 3 d display device presents, to the power down process that liquid crystal lens 1 ＇ carries out, causing the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ comparatively large, there is the problem of refraction effect in the light that display panel 2 ＇ sends at spacer 14 ＇ place.
In the present embodiment, the position of spacer 14 does not need the position corresponding to black matrix in display panel 2, reduces the manufacture difficulty of liquid crystal lens 1.And driving circuit 3 structure that present embodiment provides is simple, can not increase the extra cost of 3 d display device.
As shown in Figure 7, driving circuit 3 comprises signal generating module 31 and voltage switching module 32, when 3 d display device is used for 2D display, signal generating module 31 produces control signal, each group of driving voltage is switched to deflection voltage by control signal control voltage handover module 32, and signal generating module 31 and voltage switching module 32 are electrically connected.Driving voltage is switched to deflection voltage by voltage switching module 32, and because deflection voltage is greater than the threshold voltage of liquid crystal molecule 13, and liquid crystal molecule 13 after deflection is less with spacer 14 refringence, reduces spacer 13 to the impact of display panel 2 bright dipping.Make refringence between liquid crystal molecule 13 and spacer 14 in preset range, weaken the impact that refraction occurs at spacer 14 place in display panel 2 bright dipping.Promote the viewing effect of 3 d display device under 2D display state and viewing comfort level, improve display resolution.
In the present embodiment, according to the control signal that signal generating module 31 produces, the driving voltage of liquid crystal lens 1 is switched to deflection voltage by voltage switching module 32, liquid crystal lens 1 fast response time, display effect is good, and structure is simple, without the need to increasing too much device, easy to operate.
As the further improvement of above-mentioned embodiment, as shown in Fig. 5 and Fig. 8, voltage switching module 32 comprises switch unit 321, switch unit 321 reception control signal, each driving voltage is switched to deflection voltage, and signal generating module 31 and switch unit 321 are electrically connected.Switch unit 321 can be two-value trigger, and when control signal is 1, switch unit 321 closes, and when control signal is 0, switch unit 321 disconnects.Particularly, when 3 d display device is used for 3D display, control signal is 0, then switch unit 321 disconnects, outputting drive voltage after driving circuit 3 pairs of initial voltage process, and driving voltage drives liquid crystal molecule 13 to form liquid crystal lens unit L1.When 3 d display device is used for 2D display, control signal is 1, then switch unit 321 closes, and driving voltage is switched to deflection voltage.Adopt signal to control in voltage switching process, improve the reliability of switch unit 321.
As shown in Figure 8, voltage switching module 32 also comprises pressure regulation unit 322, and pressure regulation unit 322 is connected in series with the output terminal of voltage module 4, obtains each group of driving voltage by regulating pressure regulation unit 322.Pressure regulation unit 322 can be the resistance of adjustable resistance size.Pressure regulation unit 322 and switch unit 321 are connected in parallel, and when switch unit 321 closes, by pressure regulation unit 322 short circuit, each driving voltage are switched to deflection voltage.When switch unit 321 is in off-state, by setting the resistance of resistance, obtain corresponding driving voltage.The break-make of switch unit 321 is controlled by control signal, do not need beholder's manual operation, simplify 3 d display device operation steps, by the demand according to beholder, freely switch 3 d display device and be used for 3D display or 2D display, improve the viewing experience of beholder.
As shown in Fig. 4 and Fig. 8, voltage switching module 32 also comprises voltage regulation unit 323, voltage regulation unit 323 is for carrying out voltage stabilizing process to deflection voltage, and voltage regulation unit 323 is connected with pressure regulation units in series, and each first electrode 15, second electrode 16 is electrically connected with the output terminal of voltage regulation unit 323 respectively.Initial voltage outputting drive voltage after the adjustment of pressure regulation unit 5, or deflection voltage is exported after switch unit 321 processes, now there is larger fluctuation in driving voltage or deflection voltage, cannot meet liquid crystal lens 1 requirements of one's work.Adopt voltage regulation unit 33 pairs of driving voltages or deflection voltage to carry out voltage stabilizing process, driving voltage after treatment or deflection voltage drive liquid crystal molecule 13 that corresponding deflection occurs, and guarantee the driving voltage needed for the normal work of liquid crystal lens 1 or deflection voltage.
As shown in Figure 6,3 d display device also comprises detecting module 5, detecting module 5 is for detecting beholder whether within the scope of default viewing, when beholder is not within the scope of default viewing, detecting module 5 sends detection signal, driving circuit 3 receives detection signal, controls 3 d display device and is used for 2D display.In the present embodiment, preset viewing scope and refer to that stereoscopic display device is under (initial setting up in other words) the display unit arrangement cycle of acquiescence, that is determined by multiple discrete spectrophotometric unit width multiple discrete suitablely sees that distance is called default viewing scope, within the scope of this, beholder is when watching 3 d display device, and viewing effect is good.Detecting module 5 can comprise tracing of human eye unit, the human eye of tracing of human eye element keeps track beholder, when tracing of human eye unit does not detect human eye, then detecting module 5 sends detection signal, driving circuit 3 receives detection signal, controls 3 d display device and is used for 2D display.Or detecting module 5 comprises image identification unit, when image identification unit recognition image data source comprises 2D image, then detecting module 5 sends detection signal, and driving circuit 3 receives detection signal, controls 3 d display device and is used for 2D display, realize 2D/3D and melt altogether.Promote viewing effect and the viewing comfort level of 3 d display device,
As shown in figs. 5 and 6, when 3 d display device is used for 3D display, the voltage module 4 that present embodiment provides provides driving voltage by driving circuit 3 to each first electrode 15, there is provided ground voltage to each second electrode 16, driving voltage produces electric field intensity driving electric field not etc. between first substrate 11 and second substrate 12.Under the effect driving electric field, liquid crystal molecule 13 deflects with the change of electric field intensity, make the refractive index distribution gradient of liquid crystal layer between first substrate 11 and second substrate 12, form the liquid crystal lens unit (not shown) of array arrangement, guarantee the left view with image difference that display panel 2 provides by 3 d display device, right view presents to beholder, 3D display effect can not be affected.
Concrete operation method: when 3 d display device is used for 3D display, symmetrical driving voltage is provided to each first electrode, there is provided ground voltage to the second electrode 16, to make liquid crystal molecule 13 deflect, form array arrangement and the liquid crystal lens unit L1 of gradually changed refractive index.For Fig. 5, in liquid crystal lens unit L1, to each strip electrode as S11, S12, S13, S14, S15, S16 provide symmetrical voltage.V (S11) particularly=V (S16) >V (S12)=V (S15) >V (S13)=V (S14), wherein, V (S11)=V (S16)=Vseg
0, V (S12)=V (S15)=Vseg
1, V (S13)=V (S14)=Vseg
2, the voltage of liquid crystal lens unit L1 to present the trend of successively decreasing to center by two ends and voltage presents symmetrical.Can present a kind of state of smooth transformation more like this at each liquid crystal lens unit L1 internal electric field, the light that display panel 2 sends, through liquid crystal lens 1 point of light action, presents stereo-picture.
Particularly, as shown in Figures 4 to 7,3 d display device is when 2D shows, and switch unit 321 is by Vseg
1, Vseg
2... all switch to deflection voltage U
0, deflection voltage U
0deflecting electric field is produced between first substrate 11 and second substrate 12, deflecting electric field drives the whole liquid crystal molecules 13 in liquid crystal layer to deflect, and deflection after liquid crystal molecule 13 and spacer 14 between refringence in preset range, preset range refers to the scope being less than 0.1 according to the refringence between spacer 14 and liquid crystal molecule 13, solve in prior art, as shown in Figure 3, beholder is when watching 2D display, power down process is carried out to liquid crystal lens 1 ＇, cause the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ larger, the bright dipping of display panel 2 ＇ goes out to reflect at spacer 14 ＇, when beholder watches 3 d display device, bright spot phenomenon is there is at spacer 14 ＇ place.Compared with prior art, improve the viewing effect of 3 d display device under 2D display state and viewing comfort level, and without light leakage phenomena.
As shown in Figure 4, as the further improvement of above-mentioned embodiment, the 3 d display device that present embodiment provides is when 2D shows, and deflection voltage produces the equal uniform electric field (not shown) of electric field intensity between first substrate 11 with second substrate 12.Under the effect of uniform electric field, the deflection angle of liquid crystal molecule 13 is identical, and liquid crystal molecule 13 after deflection and the refringence between spacer 14 are in preset range, the condition meeting preset range is that the refringence between liquid crystal molecule 13 and spacer 14 is less than 0.1.Therefore, the light that display panel 2 sends, when liquid crystal molecule 13 and spacer 14, can not produce the refraction of light.Solve existing 3 d display device be in 2D display time, as shown in Figure 3, because the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ is larger, light is reflecting through spacer 14 ＇, when causing human eye to watch 3 d display device, there is the problem of bright spot at spacer 14 ＇ place.The voltage switching module 32 that embodiment of the present invention provides, the driving voltage of liquid crystal lens 1 is switched to deflection voltage, deflection voltage produces deflecting electric field between first substrate 11 and second substrate 12, under the effect of deflecting electric field, liquid crystal molecule 13 and refringence between spacer 14 in preset range, reduce the refringence between liquid crystal molecule 13 and spacer 14.There is the phenomenon of refraction in the bright dipping eliminating display panel 2, and can not affect the display effect of 3 d display device at spacer 14 place, there will not be the phenomenon of light leak.
In the present embodiment, preset range, refer to the scope being less than 0.1 according to the refringence between spacer 14 and liquid crystal molecule 13, liquid crystal molecule 13 is driven to deflect by deflecting electric field, change the refractive index of liquid crystal molecule 13 pairs of display panels 2 bright dipping, reduce the refringence between liquid crystal molecule 13 and spacer 14.Solving prior art provides 3 d display device when 2D shows, as shown in Figure 3, owing to carrying out power down process to liquid crystal lens 1 ＇, cause the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ larger, then the light that display panel 2 ＇ sends reflects at spacer 14 ＇, cause spacer 14 ＇ place to occur bright spot or color some phenomenon, affect the problem of 3 d display device viewing effect.
Particularly, as shown in Fig. 4 and Fig. 6,3 d display device is when 2D shows, voltage module 4 provides the first equal or close voltage by driving circuit 3 to multiple first electrode 15, the second voltage is provided to the second electrode 16, difference between first voltage and the second voltage is deflection voltage, and deflection voltage produces the equal deflecting electric field of electric field intensity.Under the effect of deflecting electric field, liquid crystal molecule 13 and refringence between spacer 14 in preset range, reduce the refringence between liquid crystal molecule 13 and spacer 14, eliminate spacer 14 bright spot phenomenon, and the display effect of 3 d display device can not be affected, there will not be the phenomenon of light leak.
Preferably, as shown in Figure 4, the first voltage is equal with initial voltage magnitude, and the second voltage is ground voltage, the deflection voltage of such formation drives all liquid crystal molecules 13 in liquid crystal layer that the deflection of same degree all occurs, and guarantees that 3 d display device normally shows when 2D shows.
In the present embodiment, preferably, the first electrode 15, second electrode 16 can be strip electrode, and other shape electrodes that certainly can realize the technical program also should in the protection domain of present specification.
Embodiment two
As shown in Figure 9, the 3 d display device that present embodiment provides and embodiment one provide the structure of 3 d display device substantially identical, difference is, liquid crystal lens 1a also comprises the 3rd electrode 18a, 3rd electrode 18a is arranged between each first electrode 15a and first substrate 11a, be provided with insulation course (not shown) between 3rd electrode 18a and the first electrode 15a, each first electrode 15a is located on insulation course.When 3 d display device is used for 2D display, as shown in Figure 6, voltage module 4 provides tertiary voltage by driving circuit 3 to each first electrode 15a, the 4th voltage is provided to each second electrode 16a, there is provided the 5th voltage to the 3rd electrode 18a, the difference between the 4th voltage and the 5th voltage is deflection voltage.Deflection voltage produces the equal uniform electric field (not shown) of electric field intensity between first substrate 11a with second substrate 12a, and uniform electric field drives liquid crystal molecule 13a that the deflection of same degree occurs.Namely the deflection angle of liquid crystal molecule 13a is identical, the refractive index of liquid crystal molecule 13a to display panel 2a bright dipping is identical, refringence between liquid crystal molecule 13a after deflection and spacer 14a is in preset range, and the condition meeting preset range is that the refringence between spacer 14a and liquid crystal molecule 13a is less than 0.1.
As shown in Figure 9, the light sent as display panel 2a, through liquid crystal molecule 13a and spacer 14a, can not produce the refraction of light at spacer 14a place.Solve existing 3 d display device be in 2D display time, as shown in Figure 3, due to the power down process to liquid crystal lens 1 ＇, cause the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ larger, the light that display panel 2 ＇ sends is reflecting through spacer 14 ＇, when causing human eye to watch 3 d display device, there is the problem of bright spot at spacer 14a place.In the present embodiment, when 3 d display device be used for 2D display time, need to the first electrode 15a provide can be less tertiary voltage, tertiary voltage, the 4th voltage and the 5th voltage cooperatively interact, and realize the normal display of 3 d display device.
As shown in Figure 9, the 4th voltage is ground voltage, and the 5th voltage is equal with initial voltage magnitude, and the deflection voltage of formation drives all liquid crystal molecule 13a in liquid crystal layer that the deflection of same degree all occurs, and guarantees that 3 d display device normally shows when 2D shows.
In the present embodiment, the 3rd electrode 18a can be face electrode or strip electrode closely of arranging.
Embodiment three
As shown in Figure 10 to Figure 12, the 3 d display device that present embodiment provides is substantially identical with the 3 d display device structure that embodiment one provides, the alignment direction of liquid crystal layer 10b is horizontal direction, and the horizontal direction herein mentioned is the direction vector perpendicular to terrestrial gravitation direction.Difference is, the angle between the bearing of trend of the second electrode 16b and the alignment direction of liquid crystal layer 10b is acute angle.
As shown in Figure 10 and Figure 11, when 3 d display device is used for 2D display, deflection voltage produces transverse electric field between first substrate 11b and second substrate 12b, and transverse electric field drives the liquid crystal molecule 13b generation deflection in various degree in liquid crystal layer 10b.Particularly, first substrate 11b is provided with multiple first electrode 15b, second substrate 12b is provided with multiple second electrode 16b, in phase, polarity is applied in the same time to adjacent two the second electrode 16b contrary, equal-sized alternating voltage, common electric voltage is applied to each first electrode 15b, between adjacent two the second electrode 16b, produces transverse electric field.The electric field intensity of the transverse electric field sensed due to the liquid crystal molecule 13b be positioned near first substrate 11b, second substrate 12b is more weak, and the both alignment layers (not shown) that is subject to liquid crystal lens 1b of liquid crystal molecule 13b herein provides the effect of orientation power, therefore, the deflection angle of liquid crystal molecule 13b is herein less, and the electric field intensity being positioned at transverse electric field is larger compared with the liquid crystal molecule 13b deflection angle of strength.It can thus be appreciated that under the effect of transverse electric field, there is deflection in various degree in liquid crystal molecule 13b.The light that display panel 2b sends is through liquid crystal lens 1b, be subject to the impact of the liquid crystal molecule 13b of different deflection angle, reduce the refringence between liquid crystal molecule 13b and spacer 14b, namely the refringence between liquid crystal molecule 13b and spacer 14b is in preset range, and the preset range that present embodiment provides refers to that the refringence between liquid crystal molecule 13b and spacer 14b is less than 0.1.Weaken the impact that refraction occurs at spacer 14b place in display panel 2b bright dipping.Promote the viewing effect of 3 d display device under 2D display state and viewing comfort level, improve display resolution.The present invention can solve 3 d display device as shown in Figure 3, when beholder is when watching the 2D picture that 3 d display device presents, to the power down process that liquid crystal lens 1 ＇ carries out, causing the refringence between liquid crystal molecule 13 ＇ and spacer 14 ＇ comparatively large, there is the problem of refraction effect in the light that display panel 2 ＇ sends at spacer 14 ＇ place.
As shown in Figure 10, for ensureing the imaging effect of 3 d display device when 3D shows, between the bearing of trend of the first electrode 15b and the bearing of trend of the second electrode 16b, there is angle.Deflection voltage produces transverse electric field between first substrate 11b and second substrate 12b, by this type of drive, the crossover location place of the first electrode 15b and the second electrode 16b produces stronger transverse electric field, liquid crystal molecule 13b near crossover location is under the effect of electric field force, the electric field line directional spreding of transverse electric field can be tending towards, in the present embodiment, electric field line direction is perpendicular to the bearing of trend of the second electrode 16b.And more weak away from the transverse electric field electric field intensity at crossover location place, liquid crystal molecule 13b is herein subject to more weak electric field force effect, and deflection angle is less.Therefore, the light that display panel 2b sends is through liquid crystal lens 1b, and light is subject to the impact of the liquid crystal molecule 13b of different degree of deflection, reduces spacer 14b and goes out the impact of anaclasis on display to display panel 2b, promote the display quality of 3 d display device.
In the present embodiment, the position of spacer 14b does not need the position corresponding to black matrix in display panel 2b, reduces the manufacture difficulty of liquid crystal lens 1b.
As shown in Figure 11 and Figure 12, deflection voltage forms strong electric field region in the crossover location place of the first electrode 15b and the second electrode 16b, and the liquid crystal molecule 13b deflection angle being positioned at strong electric field region is n
1, the deflection angle away from the liquid crystal molecule 13b of strong electric field region is n
2, and n
1>n
2.For ensureing that 3 d display device is when 3D shows, point light action of liquid crystal lens 1b, the bearing of trend of the first electrode 15b is crossing with the bearing of trend of the second electrode 16b, forms intersection region.Therefore, deflection voltage produces the larger strong electric field region of electric field intensity at crossover location place.Liquid crystal molecule 13b near strong electric field region, can tend to the directional spreding of electric field line under the effect of electric field force, and namely the degree of deflection of liquid crystal molecule 13b is larger.And away from strong electric field region liquid crystal molecule 13b due to the electric field force sensed more weak, deflection angle is less, liquid crystal molecule 13b simultaneously near first substrate 11b, second substrate 12b both alignment layers is subject to the effect of orientation power, further the deflection angle of restriction liquid crystal molecule 13b.Therefore, under the effect of transverse electric field force, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, reduces the refringence of liquid crystal molecule 13b and spacer 14b.The light that display panel 2b sends enters liquid crystal lens 1b, is subject to the impact of the liquid crystal molecule 13b of different deflection angle, weakens the impact of spacer 14b on display panel 2b bright dipping, promotes the display effect of 3 d display device when 2D shows.
As shown in figure 11, the liquid crystal molecule 13b being positioned at strong electric field region deflects along first direction, and first direction is perpendicular to the bearing of trend of the second electrode 16b.Under the effect of transverse electric field, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, make refringence between liquid crystal molecule 13b and spacer 14b in preset range, the bright dipping of display panel 2b enters in liquid crystal lens 1b, weaken spacer 14b goes out anaclasis impact on display panel 2b, and the liquid crystal molecule 13b of different degree of deflection also can spread by refract light further, weaken spacer 14b further to the impact of display effect.Promote the viewing effect of 3 d display device under 2D display state and viewing comfort level, improve display resolution.As shown in Figure 3, the 3 d display device that prior art provides, when showing for 2D, usually power down process is carried out to liquid crystal lens 1 ＇, refringence now between liquid crystal molecule 13 ＇ and spacer 14 ＇ is larger, causing the bright dipping of display panel 2 ＇ to reflect at spacer 14 ＇ place, there is bright spot phenomenon at spacer 14 ＇ place in human eye viewing 3 d display device.The 3 d display device that present embodiment provides compared with prior art, improves the viewing effect of 3 d display device under 2D display state and viewing comfort level.
As shown in Figure 12 and Figure 13, the angle between the bearing of trend of the first electrode 15b and the bearing of trend of the second electrode 16b is α
1, α in the present embodiment
1for acute angle, the angle between the bearing of trend of the second electrode 16b and the alignment direction of liquid crystal layer 10b is β
1, and 45 °≤β
1<90 °.Work as β
1=45 °, the angle angle namely between the bearing of trend of the second electrode 16b and the alignment direction of liquid crystal layer 10b is 45 °.Under the effect of transverse electric field, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, reduce the refringence between liquid crystal molecule 13b and spacer 14b, weaken spacer 14b to the refraction of display panel 2b bright dipping, improve the impact of spacer 14b on display effect, promote the viewing effect of 3 d display device under 2D display state and viewing comfort level.Or, work as β
1=60 °, the angle angle namely between the bearing of trend of the second electrode 16b and the alignment direction of liquid crystal layer 10b is 60 °.Under the effect of transverse electric field, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, reduce the refringence between liquid crystal molecule 13b and spacer 14b, weaken spacer 14b to the refraction of display panel 2b bright dipping, improve the impact of spacer 14b on display effect, promote the viewing effect of 3 d display device under 2D display state and viewing comfort level.Angle α between the bearing of trend of the first electrode 15b and the bearing of trend of the second electrode 16b
1, the impact eliminating the moire fringes effect produced when it superposes mutually should be considered, improve display effect.
In the present embodiment, the alignment direction of liquid crystal layer 10b is horizontal direction, voltage control module controls each first electrode 15b and provides the first voltage, the second voltage is provided to the second electrode 16b, difference between first voltage and the second voltage is deflection voltage, and deflection voltage forms transverse electric field between first substrate 11b and second substrate 12b.Because the bearing of trend of the second electrode 16b and the alignment direction angle of liquid crystal layer 10b are β
1therefore, under the effect of transverse electric field, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, reduce the refringence between liquid crystal molecule 13b and spacer 14b, weaken spacer 14b to the refraction of display panel 2b bright dipping, improve the impact of spacer 14b on display effect, promote the viewing effect of 3 d display device under 2D display state and viewing comfort level.
As shown in figure 12, the spacing between adjacent two the second electrode 16b is greater than the width of the second electrode 16b, is convenient to form transverse electric field, and liquid crystal molecule 13b is under the effect of transverse electric field, and different deflection angles is more obvious.Therefore, advantageously in the refringence reducing liquid crystal molecule 13b and spacer 14b, improve the impact of spacer 14b on display panel 2b bright dipping, improve display effect.
Preferably, as shown in figure 12, the spacing between adjacent two the second electrode 16b is L, and the width of the second electrode 16b is B, and L≤10B.Due to the electric field intensity of enough transverse electric field will be maintained, therefore, the spacing between adjacent two the second electrode 16b should not 10 times of super many second electrode 16b width.Ensure under the effect of transverse electric field, there is wide-angle deflection in the liquid crystal molecule 13b being positioned at strong electric field region, is of value to the refringence reduced between liquid crystal molecule 13b and spacer 14b, improves the display effect of 3 d display device when 2D shows.
As shown in figure 11, when 3 d display device is in 2D display, the first voltage is common electric voltage, and the second voltage is alternating voltage, and two the second voltages corresponding to adjacent two the second electrode 16b carve equal and opposite in direction at the same time, and polarity is contrary.Namely voltage control module applies common electric voltage to the first electrode 15b, alternating voltage is applied to the second electrode 16b, difference between first voltage and the second voltage is deflection voltage, deflection voltage produces strong electric field region at the crossover location place of the first electrode 15b and the second electrode 16b, the liquid crystal molecule 13b deflection angle being positioned at strong electric field region is larger, away from strong electric field region, the liquid crystal molecule 13b deflection angle as being positioned near first substrate 11b, second substrate 12b is less.Therefore, liquid crystal layer 10b has different refractivity, upsets the refract light of spacer 14b, eliminates and occurs bright spot phenomenon at spacer 14b place, promotes the display effect of 3 d display device when 2D shows.
As shown in Figure 10 and Figure 11, the 3 d display device that the embodiment of the present invention provides, deflection voltage is greater than the threshold voltage v of liquid crystal molecule 13b
th.Deflection voltage produces transverse electric field, liquid crystal molecule 13b deflects under the effect of transverse electric field, reduce the refringence between liquid crystal molecule 13b and spacer 14b, therefore, the light that display panel 2b sends is reflecting through spacer 14b, liquid crystal molecule 13b birefringence light spreads further, when the 3 d display device that eliminating prior art provides shows state for 2D, power down process is adopted to liquid crystal lens 1b, cause the refringence of liquid crystal molecule 13b and spacer 14b larger, the refraction of light is there is in light through spacer 14b, when causing human eye to watch 3 d display device, the problem of bright spot is there is at spacer 14b place.
Embodiment four
As shown in Figure 10 and Figure 14, the 3 d display device that present embodiment provides and embodiment one provide the structure of 3 d display device substantially identical, and difference is, the angle between the bearing of trend of the first electrode 15c and the bearing of trend of the second electrode 16c is α
2, α in the present embodiment
2for obtuse angle, the angle between the bearing of trend of the second electrode 16c and the alignment direction of liquid crystal layer 10b is β
2, and 0 ° of < β
2<45 °.
As shown in Figure 10, Figure 12 and Figure 14, the alignment direction of liquid crystal layer 10b is horizontal direction, and each driving voltage is switched to deflection voltage by voltage switching module 32, and deflection voltage forms transverse electric field between first substrate 11b and second substrate 12b.Because the bearing of trend of the second electrode 16c and the alignment direction angle of liquid crystal layer 10b are β
2therefore, under the effect of transverse electric field, there is deflection in various degree in the liquid crystal molecule 13b in liquid crystal layer 10b, reduce the refringence between liquid crystal molecule 13b and spacer 14b, weaken spacer 14b to the refraction of display panel 2b bright dipping, improve the impact of spacer 14b on display effect, promote the viewing effect of 3 d display device under 2D display state and viewing comfort level.
The foregoing is only better embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. 3 d display device, comprise display panel, liquid crystal lens, driving circuit and voltage module, described liquid crystal lens is positioned at the display side of described display panel, described liquid crystal lens comprises the first substrate and second substrate that are oppositely arranged, liquid crystal layer and spacer is provided with between described first substrate and described second substrate, described first substrate is provided with multiple first electrode, described second substrate is provided with multiple second electrode, each described first electrode, described second electrode is electrically connected with the output terminal of described driving circuit respectively, described voltage module provides initial voltage to described driving circuit, when described 3 d display device is used for 3D display, described initial voltage exports the many groups driving voltage needed for described liquid crystal lens work after described driving circuit process, it is characterized in that: when described 3 d display device is used for 2D display, described driving circuit exports deflection voltage to after driving voltage process described in each group, described deflection voltage is greater than the threshold voltage of described liquid crystal molecule, and be less than or equal to described initial voltage, under the effect of described deflection voltage, liquid crystal molecule in described liquid crystal layer deflects, reduce the refringence between described liquid crystal molecule and described spacer, to eliminate the impact of described spacer on described display panel bright dipping.
2. 3 d display device as claimed in claim 1, it is characterized in that: described driving voltage road comprises signal generating module and voltage switching module, when described 3 d display device is used for 2D display, described signal generating module produces control signal, and described control signal controls described voltage switching module and driving voltage described in each group is switched to described deflection voltage.
3. 3 d display device as claimed in claim 2, is characterized in that: described voltage switching module comprises switch unit, and described switch unit receives described control signal, each described driving voltage is switched to described deflection voltage.
4. 3 d display device as claimed in claim 3, it is characterized in that: described voltage switching module also comprises pressure regulation unit, the output terminal of described pressure regulation unit and described voltage module is connected in series, by regulating described pressure regulation unit to obtain driving voltage described in each group, described pressure regulation unit and described switch unit are connected in parallel.
5. 3 d display device as claimed in claim 4, it is characterized in that: described voltage switching module also comprises voltage regulation unit, for carrying out voltage stabilizing process to described deflection voltage, described voltage regulation unit is connected with described pressure regulation units in series, and output terminal and each described first electrode, described second electrode of described voltage regulation unit are electrically connected.
6. the 3 d display device according to any one of claim 1 to 5, it is characterized in that: described 3 d display device also comprises detecting module, for detecting beholder whether within the scope of default viewing, when described beholder is not within the scope of described default viewing, described detecting module sends detection signal, described driving circuit receives described detection signal, controls described 3 d display device and shows for 2D.
7. 3 d display device as claimed in claim 1, it is characterized in that: when described 3 d display device is used for 2D display, described voltage module provides the first voltage by described driving circuit to each described first electrode, there is provided the second voltage to each described second electrode, the difference between described first voltage and described second voltage is described deflection voltage.
8. 3 d display device as claimed in claim 1, it is characterized in that: described liquid crystal lens also comprises the 3rd electrode, described 3rd electrode is arranged between each described first electrode and described first substrate, when described 3 d display device is used for 2D display, described voltage module provides tertiary voltage by described driving circuit to each described first electrode, the 4th voltage is provided to each described second electrode, there is provided the 5th voltage to described 3rd electrode, the difference between described 4th voltage and described 5th voltage is described deflection voltage.
9. 3 d display device as claimed in claim 7 or 8, it is characterized in that: described deflection voltage produces the equal uniform electric field of electric field intensity between described first substrate with described second substrate, under the effect of described uniform electric field, the deflection of described liquid crystal molecule generation same degree, the described liquid crystal molecule after deflection and the refringence between described spacer are in preset range.
10. 3 d display device as claimed in claim 1, it is characterized in that: the alignment direction of described liquid crystal layer is horizontal direction, angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is acute angle, described deflection voltage produces transverse electric field between described first substrate and described second substrate, and described transverse electric field drives the liquid crystal molecule generation deflection in various degree in described liquid crystal layer.
11. 3 d display devices as claimed in claim 10, is characterized in that: the described transverse electric field in the crossover location place of described first electrode and described second electrode is strong electric field region, and the described liquid crystal deflecting element angle being positioned at described strong electric field region is n
1, the deflection angle away from the described liquid crystal molecule of described strong electric field region is n
2, and n
1>n
2.
12. 3 d display devices as claimed in claim 11, it is characterized in that: the described liquid crystal molecule being positioned at described strong electric field region deflects along first direction, described first direction is perpendicular to the bearing of trend of described second electrode.
13. 3 d display devices according to any one of claim 10 to 12, it is characterized in that: described first voltage is ground voltage, described second voltage is alternating voltage, and described in described in adjacent two, the second electrode pair is answered two, second voltage carves equal and opposite in direction at the same time, and polarity is contrary.
14. 3 d display devices as claimed in claim 13, is characterized in that: the angle between the bearing of trend of described first electrode and the bearing of trend of described second electrode is α
1, described α
1for acute angle, the angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is β
1, and 45 °≤β
1<90 °.
15. 3 d display devices as claimed in claim 14, is characterized in that: the angle between the bearing of trend of described first electrode and the bearing of trend of described second electrode is α
2, described α
2for obtuse angle, the angle between the bearing of trend of described second electrode and the alignment direction of described liquid crystal layer is β
2, and 0 ° of < β
2<45 °.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410444490.4A CN104238164A (en) | 2014-09-02 | 2014-09-02 | 3D (three-dimensional) display device |
| CN201510402058.3A CN106200053B (en) | 2014-09-02 | 2015-07-09 | 3 d display device |
| US14/831,458 US9786232B2 (en) | 2014-09-02 | 2015-08-20 | 2D/3D switchable stereoscopic display device |
| TW104127283A TWI533665B (en) | 2014-09-02 | 2015-08-20 | Stereoscopic display device |
| JP2015171879A JP6242021B2 (en) | 2014-09-02 | 2015-09-01 | 3D display device |
| KR1020150123517A KR101740414B1 (en) | 2014-09-02 | 2015-09-01 | Stereoscopic display apparatus |
| EP15183521.2A EP2993902B1 (en) | 2014-09-02 | 2015-09-02 | 2d/3d switchable stereoscopic display device |
| KR1020170061742A KR102066449B1 (en) | 2014-09-02 | 2017-05-18 | Stereoscopic display apparatus |
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|---|---|---|---|
| CN201410444490.4A CN104238164A (en) | 2014-09-02 | 2014-09-02 | 3D (three-dimensional) display device |
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| Publication Number | Publication Date |
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| CN104238164A true CN104238164A (en) | 2014-12-24 |
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ID=52226569
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| CN201510402058.3A Active CN106200053B (en) | 2014-09-02 | 2015-07-09 | 3 d display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196959A1 (en) * | 2014-06-24 | 2015-12-30 | 深圳超多维光电子有限公司 | 2d/3d switchable stereo display device |
| CN108267907A (en) * | 2016-12-30 | 2018-07-10 | 深圳超多维光电子有限公司 | Liquid crystal lens, 3 d display device and intelligent terminal |
| WO2019062489A1 (en) * | 2017-09-28 | 2019-04-04 | 京东方科技集团股份有限公司 | Liquid crystal grating and driving method thereof, and display device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2314640A (en) * | 1996-06-26 | 1998-01-07 | Sharp Kk | Liquid crystal devices |
| KR101419230B1 (en) * | 2007-11-29 | 2014-07-16 | 엘지디스플레이 주식회사 | Stereoscopic Display device |
| JP5521380B2 (en) * | 2009-04-13 | 2014-06-11 | ソニー株式会社 | 3D display device |
| US10509364B2 (en) | 2009-09-29 | 2019-12-17 | Seereal Technologies S.A. | Light modulator for a display for displaying two-dimensional and/or three-dimensional image contents |
| CN102062985B (en) * | 2010-11-16 | 2012-02-22 | 深圳超多维光电子有限公司 | Liquid crystal lens, control method thereof, and 3D display device |
| JP5699394B2 (en) * | 2011-01-06 | 2015-04-08 | 秋田県 | Liquid crystal cylindrical lens array and display device |
| JP5760497B2 (en) * | 2011-02-22 | 2015-08-12 | 大日本印刷株式会社 | Liquid crystal lens and substrate for manufacturing liquid crystal lens |
| JP5607558B2 (en) * | 2011-02-24 | 2014-10-15 | 株式会社ジャパンディスプレイ | Image display device and variable lens array |
| JP5596625B2 (en) * | 2011-06-07 | 2014-09-24 | 株式会社ジャパンディスプレイ | Display device |
| CN103631021B (en) * | 2012-08-27 | 2016-06-15 | 群康科技(深圳)有限公司 | 3 d display device and image display method thereof |
-
2014
- 2014-09-02 CN CN201410444490.4A patent/CN104238164A/en active Pending
-
2015
- 2015-07-09 CN CN201510402058.3A patent/CN106200053B/en active Active
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015196959A1 (en) * | 2014-06-24 | 2015-12-30 | 深圳超多维光电子有限公司 | 2d/3d switchable stereo display device |
| CN108267907A (en) * | 2016-12-30 | 2018-07-10 | 深圳超多维光电子有限公司 | Liquid crystal lens, 3 d display device and intelligent terminal |
| WO2019062489A1 (en) * | 2017-09-28 | 2019-04-04 | 京东方科技集团股份有限公司 | Liquid crystal grating and driving method thereof, and display device |
| CN109581779A (en) * | 2017-09-28 | 2019-04-05 | 京东方科技集团股份有限公司 | Liquid crystal grating and its driving method, display device |
| US10859879B2 (en) | 2017-09-28 | 2020-12-08 | Boe Technology Group Co., Ltd. | Liquid crystal grating and driving method thereof, display device |
| EP3690522A4 (en) * | 2017-09-28 | 2021-05-05 | BOE Technology Group Co., Ltd. | Liquid crystal grating and driving method thereof, and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106200053A (en) | 2016-12-07 |
| CN106200053B (en) | 2017-11-21 |
| KR102066449B1 (en) | 2020-01-15 |
| KR20170057872A (en) | 2017-05-25 |
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